Hillman Zinc-plated Steel All Metal Nut

These top lock nuts from Hillman are ready to tighten your world. With chamfered corners and a conical top that resists loosening from vibration, these metal nuts provide a secure grip to keep your bolts tight. The name says it all – once they’re installed, these one-way nuts stay locked in place. Perfect for high-temperature applications where other materials might fail, these all-metal top lock nuts deliver durable performance you can count on. Simply choose the size you need from Hillman’s assorted pack and watch as your projects go together with precision and ease. With Hillman’s top lock nuts wrangling your bolts, you’ll tighten fittings faster and worry less about parts coming loose – so get down to business with confidence.